What are the differences of waterproof watches

by HongRong L. ceramicslife

Here are two kinds of waterproof watches: Ordinary waterproof and professional waterproof.
     waterproof watches rely on mirrors, rear, watches, etc. waterproof apron and head to achieve the appropriate standard. All watches are waterproof cover on the bottom playing a "WATERRESISTANT" words in English or "WATER PROOF" of. No water mark watches means only dustproof, which should avoid cleaning the bathroom. 30 meters (3ATM, ie 3 atm)   waterproof watches can be used for daily grooming or rain use, that just splashing water droplets on the surface and do not have any pressure is applied to the table. 50 m water table is applicable to swimming and general housework, 100 meters waterproof watches can be used for swimming and diving underwater work.
So why waterproof watches marked higher than the actual use ?
Usually waterproof watches warranty or instructions for use in both this text:
Waterproof 30 meters, only anti-wash splashing;
Waterproof 100 meters, for snorkeling or swimming;
Waterproof 200 meters, you can supply the lungs diving.
These instructions may seem clear, but fuzzy, like scuba diving depth of 30 meters, however, why the need waterproof to a depth of 200 meters waterproof watch? Since waterproof up to 30 meters, so why not take a bath wearing a watch? Exactly how to interpret? Whenever underwater 10 meters depth increases, it will increase the equivalent of one atmosphere of pressure, in accordance with this principle, so that the general pressure gauge to test the watch factory are waterproof watches, so some waterproof watches factory will to indicate compression values
​​(bar or atm) to represent its water values. 1bar equal to withstand the pressure of one kilogram per square centimeter, it can withstand compressive 10bar pressure equivalent to the depth of 100 meters below the surface that exists, which is waterproof 100 meters, 20bar equivalent waterproof 200 meters, and so on. If the watch is only when the words Water Resistance without numerical mark, in accordance with international standards is a waterproof 20 meters. However, the so-called stress test is static, when worn on the wrist using a table or swimming diving, the pressure is dynamic, so watch needed to withstand much greater than the static pressure of the moment, it must be multiplied by the number fold safety factor to ensure watches waterproof, which is why the waterproof watches marked depth is much higher than the actual reason for use.
waterproof watches performance difference:
Difference waterproof watches, the easiest way is by the shape determination: In general, the best waterproof watches is circular watch,the second oval, and square or irregular watch is relatively poor waterproof , this is because most waterproof apron and rounded close together. Secondly, the material difference, copper, aluminum or gold material for a long time will deteriorate, thereby affecting water resistance. Furthermore, the crown, the bottom and edges of the glass are the main local water, so the watch itself is also designed to have absolute influence, for example: with screw-in crown and case back with bezel design, good compared thick waterproof watches are usually better; ultra-thin waterproof watches due to limited space can not effectively waterproof, so less water resistance; according to the design and versatile, waterproof watches also likely to have loopholes. 

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About HongRong L. Innovator   ceramicslife

16 connections, 0 recommendations, 57 honor points.
Joined APSense since, May 21st, 2014, From GuangZhou, China.

Created on Dec 31st 1969 18:00. Viewed 0 times.


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